Self-adaptive near-electricity voice alarm and safety helmet

Abstract

The utility model provides a self-adaptive near-electricity voice alarm and a safety helmet, the alarm comprises a master control module, a near-electricity alarm module and a self-adaptive voltage detection channel selection module, the master control module and the self-adaptive voltage detection channel selection module are respectively electrically connected with the near-electricity alarm module, and the near-electricity alarm module is electrically connected with the self-adaptive voltage detection channel selection module. The main control module is electrically connected with the adaptive voltage detection channel selection module; the adaptive voltage detection channel selection module comprises a detection matching circuit, a plurality of voltage detection circuits and a gating control circuit, one end of the detection matching circuit is electrically connected with the near-electricity alarm module, and the other end of the detection matching circuit is electrically connected with the plurality of voltage detection circuits; and the plurality of voltage detection circuits are electrically connected with the gating control circuit respectively. According to the technical scheme of the utility model, a plurality of different voltage grades can be detected adaptively, and the alarm threshold value can be adjusted automatically and accurately according to the electric field intensity monitored in real time, so that effective early warning of a multi-stage voltage environment can be realized.

Description

Technical Field

[0001] This utility model relates to the field of proximity alarm technology, and in particular to an adaptive proximity voice alarm device and a safety helmet. Background Technology

[0002] In modern society, electricity has become a crucial foundation supporting the operation of all sectors, with a vast and complex power system widely distributed throughout urban and rural areas. From high-voltage transmission lines stretching for thousands of miles to various sophisticated electrical equipment, power facilities are ubiquitous. Throughout the entire process of electricity production, transmission, distribution, and use, workers inevitably need to frequently approach or even directly operate live equipment. For example, power maintenance personnel often have to work in close proximity to live conductors when inspecting and maintaining high-voltage transmission lines; electrical equipment installers also constantly face the risk of accidentally touching live parts during the installation and commissioning of equipment such as distribution cabinets.

[0003] Because electricity is intangible and immaterial, electric shock accidents are highly likely to occur due to worker negligence or operational errors, leading to serious personal injury and even tragic deaths. Relevant safety accident statistics show that electric shock accidents account for a considerable proportion of accidents in the power industry and related fields, causing unbearable suffering to countless individuals and families and incurring enormous losses to society.

[0004] To effectively address this serious challenge and ensure the safety of power workers, proximity alarm technology has emerged. When power workers carry proximity alarms into energized areas or climb energized towers, the alarms can promptly emit continuous audible alarm signals, effectively alerting workers to potential dangers and greatly reducing the incidence of electric shock accidents caused by misperception or error.

[0005] However, current proximity alarms on the market generally have limitations. Different energized areas have different voltage levels, and most existing proximity alarms require manual switching of voltage levels using mechanical DIP switches or touch buttons. The operation process is cumbersome and inconvenient, and in actual operation, it is easy to cause errors due to negligence, especially in scenarios such as climbing towers and working at heights, which can easily lead to misoperation and fail to meet the needs of efficient and accurate protection of work safety. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model discloses an adaptive proximity voice alarm and a safety helmet that can adaptively detect multiple voltage levels and automatically adjust the alarm threshold according to the electric field strength, thereby achieving early warning under multi-level voltage environments.

[0007] The technical solution of this utility model is as follows:

[0008] An adaptive proximity voice alarm includes a main control module, a proximity alarm module, an adaptive voltage detection channel selection module, and an audio power amplifier. The main control module and the adaptive voltage detection channel selection module are electrically connected to the proximity alarm module, and the main control module is electrically connected to the adaptive voltage detection channel selection module and the audio power amplifier.

[0009] The adaptive voltage detection channel selection module includes a detection matching circuit, multiple voltage detection circuits, and a gating control circuit. One end of the detection matching circuit is electrically connected to the proximity alarm module, and the other end of the detection matching circuit is electrically connected to the multiple voltage detection circuits. The multiple voltage detection circuits are respectively electrically connected to the gating control circuit.

[0010] The gating control circuit is electrically connected to the main control module to obtain the current voltage detection circuit setting information;

[0011] The proximity alarm module includes a proximity sensing chip and an alarm indication unit, which are used to monitor proximity conditions and issue an alarm. The proximity sensing chip is electrically connected to the voltage sensing antenna and the alarm indication unit, and the proximity sensing chip communicates with the main control module.

[0012] Using this technical solution, the main control module uses a dedicated gating control circuit to rapidly switch between detection circuits of various voltage levels, selecting only one level of detection circuit at a time. This circuit is then connected to the proximity sensor chip via a detection matching circuit. When the proximity sensor chip detects a proximity electric field at a certain moment, the proximity alarm module outputs an alarm message to the main control module. Upon receiving the alarm message, the main control module will remain on that channel until the alarm message disappears before proceeding to the next switching cycle. When the main control module receives an alarm message, it can determine the current alarm voltage level based on the current detection circuit channel settings. After processing the alarm message, the main control unit provides an alarm notification to the operators and simultaneously transmits the alarm information, combined with data from various sensors, to the backend.

[0013] As a further improvement of this utility model, the plurality of voltage detection circuits include a 220KV detection circuit, a 110KV detection circuit, a 10KV detection circuit, a 35KV detection circuit, and a 220V detection circuit.

[0014] As a further improvement of this utility model, the detection matching circuit includes diode ANT201, diode TV201, and a parallel resistor circuit for multiple voltage detection circuits. The parallel resistor circuit for multiple voltage detection circuits includes a series of resistors corresponding to the voltage level of each voltage detection circuit. The parallel resistor circuit for multiple voltage detection circuits is electrically connected to the TIN terminal of the proximity sensing chip U201. The TIN terminal of the proximity sensing chip U201 is electrically connected to diode ANT201 and diode TV201 respectively. Diode TV201 is grounded. The TIN terminal of the proximity sensing chip U201 is grounded through capacitor C203.

[0015] The VREF terminal of the proximity sensing chip U201 is connected to one end of the parallel resistor circuit of the multi-voltage detection circuit, and grounded through capacitor C201 for reference comparison to determine whether there is an induced electric field; the other end of the parallel resistor circuit of the multi-voltage detection circuit is electrically connected to the proximity alarm module.

[0016] As a further improvement of this utility model, one end of the TIN terminal of the proximity sensing chip U201 is electrically connected to the resistor R214, and the other end of the resistor R214 is connected to one end of the parallel circuit of the multi-voltage detection circuit resistors, and grounded through the resistor R226.

[0017] The OSC2 terminal of the proximity sensing chip U201 is connected to capacitors X201 and C209. Capacitor C209 is grounded. Capacitor X201 is electrically connected to the OSC1 terminal and is also electrically connected to capacitor C207 before being grounded.

[0018] The VREFO terminal of the proximity sensor chip U201 is electrically connected to the VREF terminal of the proximity sensor chip U201 through resistor R202.

[0019] As a further improvement of this utility model, the resistance of the resistor R202 is 470 KΩ.

[0020] As a further improvement of this utility model, the parallel resistor circuit of the multi-voltage detection circuit includes resistors R205, R231, R232, R233, R234 and R202, and the resistance values ​​of resistors R205, R231, R232, R233, R234 and R202 are 62KΩ, 330KΩ, 430KΩ, 820KΩ and 910KΩ, respectively.

[0021] As a further improvement of this utility model, the gating control circuit corresponding to the multiple voltage detection circuits each includes a first resistor, a second resistor, and a transistor. The base of the transistor is connected to the first resistor and grounded through the second resistor. Further, the gating control circuit corresponding to the 220V detection circuit includes a transistor Q201, a resistor R229, and a resistor 207. The base of the transistor Q201 is connected to the resistor R229 and grounded through the resistor 207, and the emitter of the transistor Q201 is grounded.

[0022] The gating control circuit corresponding to the 10KV detection circuit includes a transistor Q202, a resistor R206 and a resistor 203. The base of the transistor Q202 is connected to the resistor R206 and grounded through the resistor 203. The emitter of the transistor Q202 is grounded.

[0023] The gating control circuit corresponding to the 35KV detection circuit includes a transistor Q204, a resistor R208, and a resistor 204. The base of the transistor Q204 is connected to the resistor R208 and grounded through the resistor 204. The emitter of the transistor Q204 is grounded.

[0024] The gating control circuit corresponding to the 110KV detection circuit includes a transistor Q206, a resistor R201 and a resistor 209. The base of the transistor Q206 is connected to the resistor R201 and grounded through the resistor 208. The emitter of the transistor Q206 is grounded.

[0025] The gating control circuit corresponding to the 220KV detection circuit includes a transistor Q207, a resistor R227 and a resistor 210. The base of the transistor Q207 is connected to the resistor R227 and grounded through the resistor 210. The emitter of the transistor Q207 is grounded.

[0026] The bases of transistors Q201, Q202, Q204, Q206, and Q207 are electrically connected to the main control module through resistors R229, R206, R208, R201, and R227.

[0027] As a further improvement of this utility model, the plurality of voltage sensors include resistors R224 and R225 and capacitor C206. One end of resistor R224 is electrically connected to the OUT terminal of the proximity sensing chip U201, and the other end of resistor R224 is connected to a parallel circuit of resistor R225 and capacitor C206. The other end of the parallel circuit of resistor R225 and capacitor C206 is grounded. The other end of resistor R224 leads out a signal and connects to the GPIO8_IR_MOVE_PWM terminal of the main control module. Further, the resistance of resistor R224 is 12 kΩ, and the resistance of resistor R225 is 15 kΩ.

[0028] As a further improvement of this utility model, the adaptive proximity voice alarm includes a Beidou module, an accelerometer, a proximity sensor, a communication module, and a power supply. The Beidou module, accelerometer, proximity sensor, communication module, and power supply are electrically connected to the main control module. The communication module includes a 4G antenna, a SIM card, and a 4G communication unit, and is electrically connected to the main control module. The proximity sensor is used to detect the approach of surrounding objects; the Beidou module is used to provide positioning information; and the accelerometer is used to detect changes in the acceleration of the alarm.

[0029] Furthermore, the main control module is a 4G LTE main control module, which realizes 4G network communication function through a 4G antenna, SIM card and 4G communication unit.

[0030] As a further improvement of this utility model, the adaptive proximity voice alarm includes a microphone and a speaker, the speaker being connected to an audio power supply, and the microphone being connected to a main control module.

[0031] As a further improvement of this utility model, the power supply includes a lithium-ion battery and a power management unit. The power management unit is electrically connected to the lithium-ion battery and is used to manage the charging process of the lithium-ion battery and provide stable power to the main control module and other modules. Furthermore, the power management unit adopts intelligent power management technology. When the device is idle, some modules enter a low-power sleep mode. When there is a near-power alarm or a need to update location information, the modules are quickly woken up to work, effectively extending the device's battery life and meeting the needs of scenarios such as long-term field operations.

[0032] As a further improvement of this utility model, the main control module includes a chip EC810, and the chip model of the proximity alarm chip is JW0828.

[0033] This invention discloses an adaptive proximity voice alarm safety helmet, which includes the adaptive proximity voice alarm device as described in any of the above.

[0034] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0035] The technical solution of this invention can adaptively detect multiple voltage levels and automatically and accurately adjust the alarm threshold based on the real-time monitored electric field strength, thereby achieving effective early warning for multi-level voltage environments. This innovative design significantly improves ease of use and fundamentally avoids adverse consequences caused by human error. Attached Figure Description

[0036] Figure 1This is a circuit structure block diagram of an adaptive proximity voice alarm according to an embodiment of the present invention.

[0037] Figure 2 This is a circuit diagram of the detection and matching circuit according to an embodiment of the present invention.

[0038] Figure 3 This is a circuit diagram of the gating control circuit according to an embodiment of the present invention.

[0039] Figure 4 This is a circuit diagram of the detection circuit according to an embodiment of the present invention. Detailed Implementation

[0040] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Example 1

[0041] like Figures 1-4 As shown, an adaptive proximity voice alarm includes a main control module, a proximity alarm module, an adaptive voltage detection channel selection module, and an audio power amplifier. The main control module and the adaptive voltage detection channel selection module are electrically connected to the proximity alarm module, and the main control module is also electrically connected to the adaptive voltage detection channel selection module and the audio power amplifier. The adaptive voltage detection channel selection module includes a detection matching circuit, multiple voltage detection circuits, and a gating control circuit. One end of the detection matching circuit is electrically connected to the proximity alarm module, and the other end is electrically connected to the multiple voltage detection circuits. The multiple voltage detection circuits are each electrically connected to the gating control circuit. The gating control circuit is electrically connected to the main control module and acquires the current setting information of the voltage detection circuits. The proximity alarm module includes a proximity sensing chip and an alarm indication unit for monitoring proximity conditions and issuing an alarm. The proximity sensing chip is electrically connected to a voltage sensing antenna and the alarm indication unit, and the proximity sensing chip communicates with the main control module.

[0042] Specifically, the plurality of voltage detection circuits include a 220KV detection circuit, a 110KV detection circuit, a 10KV detection circuit, a 35KV detection circuit, and a 220V detection circuit.

[0043] The detection matching circuit includes diode ANT201, diode TV201, and a parallel resistor circuit for multiple voltage detection circuits. The parallel resistor circuit for multiple voltage detection circuits includes a series of resistors corresponding to the voltage levels of each voltage detection circuit. The parallel resistor circuit for multiple voltage detection circuits is electrically connected to the TIN terminal of the proximity sensing chip U201. The TIN terminal of the proximity sensing chip U201 is electrically connected to diode ANT201 and diode TV201 respectively. Diode TV201 is grounded. The TIN terminal of the proximity sensing chip U201 is grounded through capacitor C203. The VREF terminal of the proximity sensing chip U201 is connected to one end of the parallel resistor circuit for multiple voltage detection circuits and grounded through capacitor C201 for reference comparison to determine whether there is an induced electric field. The other end of the parallel resistor circuit for multiple voltage detection circuits is electrically connected to the proximity alarm module. One end of the TIN terminal of the proximity sensing chip U201 is electrically connected to resistor R214, and the other end of resistor R214 is connected to one end of the parallel resistor circuit of the multi-voltage detection circuit, and grounded through resistor R226; the OSC2 terminal of the proximity sensing chip U201 is connected to capacitor X201 and capacitor C209, capacitor C209 is grounded, capacitor X201 is electrically connected to the OSC1 terminal, and is also electrically connected to capacitor C207 and then grounded; the VREFO terminal of the proximity sensing chip U201 is electrically connected to the VREF terminal of the proximity sensing chip U201 through resistor R202. Further, the resistance of resistor R202 is 470 kΩ.

[0044] The parallel resistor circuit for multi-voltage detection includes resistors R205, R231, R232, R233, R234, and R202, with resistance values ​​of 62KΩ, 330KΩ, 430KΩ, 820KΩ, and 910KΩ, respectively. Each voltage level in the parallel resistor circuit corresponds to a set of resistors. Different electric field levels will generate different induced voltage levels. By comparing with the VREF reference, it can be determined whether there is an induced electric field.

[0045] The gating control circuit corresponding to the 220V detection circuit includes a transistor Q201, a resistor R229 and a resistor 207. The base of the transistor Q201 is connected to the resistor R229 and grounded through the resistor 207. The emitter of the transistor Q201 is grounded.

[0046] The gating control circuit corresponding to the 10KV detection circuit includes a transistor Q202, a resistor R206 and a resistor 203. The base of the transistor Q202 is connected to the resistor R206 and grounded through the resistor 203. The emitter of the transistor Q202 is grounded.

[0047] The gating control circuit corresponding to the 35KV detection circuit includes a transistor Q204, a resistor R208, and a resistor 204. The base of the transistor Q204 is connected to the resistor R208 and grounded through the resistor 204. The emitter of the transistor Q204 is grounded.

[0048] The gating control circuit corresponding to the 110KV detection circuit includes a transistor Q206, a resistor R201 and a resistor 209. The base of the transistor Q206 is connected to the resistor R201 and grounded through the resistor 208. The emitter of the transistor Q206 is grounded.

[0049] The gating control circuit corresponding to the 220KV detection circuit includes a transistor Q207, a resistor R227 and a resistor 210. The base of the transistor Q207 is connected to the resistor R227 and grounded through the resistor 210. The emitter of the transistor Q207 is grounded.

[0050] The bases of transistors Q201, Q202, Q204, Q206, and Q207 are electrically connected to the main control module via resistors R229, R206, R208, R201, and R227. In each of the voltage detection circuits described above, each channel is independently controlled by a single transistor, and the base of each transistor is controlled by the main control module, ensuring that only one transistor is conducting during operation.

[0051] The plurality of voltage detection circuits include resistors R224 and R225 and capacitor C206. One end of resistor R224 is electrically connected to the OUT terminal of the proximity sensing chip U201, and the other end of resistor R224 is connected to a parallel circuit of resistor R225 and capacitor C206. The other end of the parallel circuit of resistor R225 and capacitor C206 is grounded. The other end of resistor R224 leads out a signal and connects to the GPIO8_IR_MOVE_PWM terminal of the main control module.

[0052] The main control module includes an EC810 chip, and the proximity alarm chip has a chip model of JW0828.

[0053] When the proximity sensor detects an electric field, the OUT pin of the proximity sensor U201 outputs a 4kHz square wave. The OUT pin output is 3.3V, while the main module operates on a 1.8V power supply. A low-cost resistor divider is used to convert the 3.3V waveform from the OUT pin to a 1.8V waveform. The main control module detects this voltage change, thus determining that an electric field has been detected. Combined with the gating circuit, it then determines the electric field level.

[0054] The adaptive proximity voice alarm includes a BeiDou module, an accelerometer, a proximity sensor, a communication module, a power supply, a microphone, and a speaker. The BeiDou module, accelerometer, proximity sensor, communication module, and power supply are electrically connected to the main control module. The communication module includes a 4G antenna, a SIM card, and a 4G communication unit, and is electrically connected to the main control module. The speaker is connected to the audio power supply, and the microphone is connected to the main control module.

[0055] This proximity alarm incorporates a high-precision voltage sensing chip. When the device approaches energized equipment, it alerts operators through voice announcements and warning lights. Simultaneously, it synchronizes high-precision location information and real-time alarm data provided by BeiDou positioning with the backend via the efficient communication capabilities of the 4G network, facilitating remote monitoring by management personnel. This alarm adaptively detects multiple voltage levels and automatically adjusts the alarm threshold based on the electric field strength, enabling early warning in multi-voltage environments. The main principle is as follows: The proximity sensing chip is designed with corresponding detection circuits for different electric field levels. Traditionally, these detection circuits require manual switching. In this embodiment, the main control module uses a dedicated gating control circuit to rapidly switch the detection circuits for each voltage level in turn, controlling only one level of detection circuit to be selected at any given time. This circuit is then connected to the proximity sensing chip via a detection matching circuit. When the proximity sensing chip detects a near electric field at a certain moment, the alarm module outputs an alarm message to the main control module. Upon receiving the alarm message, the main control module maintains the switching state on this channel until the alarm message disappears before proceeding to the next switching cycle. When the main control module receives an alarm message, it can determine the voltage level of the current alarm based on the current detection circuit channel settings. After the main control unit identifies and processes the alarm message, it alerts the operators and simultaneously transmits the alarm message, combined with data from various sensors, to the backend. Example 2

[0056] An adaptive proximity voice alarm helmet, comprising an adaptive proximity voice alarm as described in Example 1.

[0057] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the shape and structure of this utility model are within the protection scope of this utility model.

Claims

1. An adaptive proximity voice alarm, characterized in that: It includes a main control module, a proximity alarm module, an adaptive voltage detection channel selection module, and an audio power amplifier. The main control module and the adaptive voltage detection channel selection module are electrically connected to the proximity alarm module, and the main control module is electrically connected to the adaptive voltage detection channel selection module and the audio power amplifier. The adaptive voltage detection channel selection module includes a detection matching circuit, multiple voltage detection circuits, and a gating control circuit. One end of the detection matching circuit is electrically connected to the proximity alarm module, and the other end of the detection matching circuit is electrically connected to the multiple voltage detection circuits. The multiple voltage detection circuits are respectively electrically connected to the gating control circuit. The gating control circuit is electrically connected to the main control module to obtain the current voltage detection circuit setting information; The proximity alarm module includes a proximity sensing chip and an alarm indication unit, which are used to monitor proximity conditions and issue an alarm. The proximity sensing chip is electrically connected to the voltage sensing antenna and the alarm indication unit, and the proximity sensing chip communicates with the main control module.

2. The adaptive proximity voice alarm according to claim 1, characterized in that: The multiple voltage detection circuits include a 220KV detection circuit, a 110KV detection circuit, a 10KV detection circuit, a 35KV detection circuit, and a 220V detection circuit.

3. The adaptive proximity voice alarm according to claim 2, characterized in that: The detection matching circuit includes diode ANT201, diode TV201, and a parallel resistor circuit for multiple voltage detection circuits. The parallel resistor circuit for multiple voltage detection circuits includes a series of resistors corresponding to the voltage level of each voltage detection circuit. The parallel resistor circuit for multiple voltage detection circuits is electrically connected to the TIN terminal of proximity sensing chip U201. The TIN terminal of proximity sensing chip U201 is electrically connected to diode ANT201 and diode TV201 respectively. Diode TV201 is grounded. The TIN terminal of proximity sensing chip U201 is grounded through capacitor C203. The VREF terminal of the proximity sensing chip U201 is connected to one end of the parallel resistor circuit of the multi-voltage detection circuit, and grounded through capacitor C201 for reference comparison to determine whether there is an induced electric field; the other end of the parallel resistor circuit of the multi-voltage detection circuit is electrically connected to the proximity alarm module.

4. The adaptive proximity voice alarm according to claim 3, characterized in that: One end of the TIN terminal of the proximity sensing chip U201 is electrically connected to resistor R214, and the other end of resistor R214 is connected to one end of the parallel circuit of the multi-voltage detection circuit resistors, and is grounded through resistor R226. The OSC2 terminal of the proximity sensing chip U201 is connected to capacitors X201 and C209. Capacitor C209 is grounded. Capacitor X201 is electrically connected to the OSC1 terminal and is also electrically connected to capacitor C207 before being grounded. The VREFO terminal of the proximity sensor chip U201 is electrically connected to the VREF terminal of the proximity sensor chip U201 through resistor R202.

5. The adaptive proximity voice alarm according to claim 4, characterized in that: The multi-voltage detection circuit with parallel resistors includes resistors R205, R231, R232, R233, R234, and R202, with resistance values ​​of 62KΩ, 330KΩ, 430KΩ, 820KΩ, and 910KΩ, respectively.

6. The adaptive proximity voice alarm according to claim 5, characterized in that: The gating control circuit corresponding to the 220V detection circuit includes a transistor Q201, a resistor R229 and a resistor 207. The base of the transistor Q201 is connected to the resistor R229 and grounded through the resistor 207. The emitter of the transistor Q201 is grounded. The gating control circuit corresponding to the 10KV detection circuit includes a transistor Q202, a resistor R206 and a resistor 203. The base of the transistor Q202 is connected to the resistor R206 and grounded through the resistor 203. The emitter of the transistor Q202 is grounded. The gating control circuit corresponding to the 35KV detection circuit includes a transistor Q204, a resistor R208, and a resistor 204. The base of the transistor Q204 is connected to the resistor R208 and grounded through the resistor 204. The emitter of the transistor Q204 is grounded. The gating control circuit corresponding to the 110KV detection circuit includes a transistor Q206, a resistor R201 and a resistor 209. The base of the transistor Q206 is connected to the resistor R201 and grounded through the resistor 208. The emitter of the transistor Q206 is grounded. The gating control circuit corresponding to the 220KV detection circuit includes a transistor Q207, a resistor R227 and a resistor 210. The base of the transistor Q207 is connected to the resistor R227 and grounded through the resistor 210. The emitter of the transistor Q207 is grounded. The bases of transistors Q201, Q202, Q204, Q206, and Q207 are electrically connected to the main control module through resistors R229, R206, R208, R201, and R227.

7. The adaptive proximity voice alarm according to claim 5, characterized in that: The plurality of voltage detection circuits include resistors R224 and R225 and capacitor C206. One end of resistor R224 is electrically connected to the OUT terminal of the proximity sensing chip U201, and the other end of resistor R224 is connected to a parallel circuit of resistor R225 and capacitor C206. The other end of the parallel circuit of resistor R225 and capacitor C206 is grounded. The other end of resistor R224 leads out a signal and connects to the GPIO8_IR_MOVE_PWM terminal of the main control module.

8. The adaptive proximity voice alarm according to any one of claims 1 to 7, characterized in that: The adaptive proximity voice alarm includes a Beidou module, an accelerometer, a proximity sensor, a communication module, and a power supply. The Beidou module, accelerometer, proximity sensor, communication module, and power supply are electrically connected to the main control module. The communication module includes a 4G antenna, a SIM card, and a 4G communication unit. The communication module is electrically connected to the main control module.

9. The adaptive proximity voice alarm according to claim 8, characterized in that: The adaptive proximity voice alarm includes a microphone and a speaker. The speaker is connected to the audio power supply, and the microphone is connected to the main control module.

10. An adaptive proximity voice alarm safety helmet, characterized in that: It includes the adaptive proximity voice alarm as described in any one of claims 1 to 9.

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